CN102342074A - Transmission of preamble code for mobile wimax systems - Google Patents
Transmission of preamble code for mobile wimax systems Download PDFInfo
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- CN102342074A CN102342074A CN201080010811XA CN201080010811A CN102342074A CN 102342074 A CN102342074 A CN 102342074A CN 201080010811X A CN201080010811X A CN 201080010811XA CN 201080010811 A CN201080010811 A CN 201080010811A CN 102342074 A CN102342074 A CN 102342074A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
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- Synchronisation In Digital Transmission Systems (AREA)
- Telephonic Communication Services (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
Abstract
Embodiments of an apparatus and methods for transmission of timing and synchronization information for mobile WiMAX systems are generally described herein. Other embodiments may be described and claimed.
Description
Technical field
FIELD OF THE INVENTION relates generally to the field of radio communication, and specifically, relates to the coding of the channel that is used for radio communication.
Background technology
It is to be used for fixing and the broadband wireless technology of mobile broadband network can realize comprising data, flowing broadband data, services such as transmitting video and speech that mobile microwave inserts global interoperability (WiMAX).To the robustness of serious interference and synchronizing channel or synchronously the fast detecting of preamble (preamble) scanning stand-by period that fast cell selection, system sequence and frequency are obtained sub-district covering and cell-edge performance and travelling carriage most important.Preamble is used for sequential and carrier synchronization, and should have the different sign indicating numbers of sufficient amount so that adjacent base station has unique preamble.
Mobile WiMAX system can be according to operating such as Electrical and Electronic engineer (IEEE) 802.16e-2005 standard " Air Interface for Fixed and Mobile Broadband Wireless Access Systems " (in February, 2005) and evolution IEEE 802.16m standard standards such as " Advanced Air Interface " thereof.In 802.16m, two senior preambles are arranged: main senior preamble (PA preamble) and second advanced preamble (SA preamble).
Description of drawings
Through reference following detailed description (when carrying out) together with accompanying drawing; Above-mentioned aspect of the present invention and many advantages of following will become more comprehensible, the understanding because it improves, wherein; Similarly reference numeral runs through the similar part of each view shows, only if indication is arranged in addition:
Fig. 1 illustrates the wireless network according to some embodiment;
Fig. 2 illustrates the block diagram of equipment that is used to handle preamble sequence according to various embodiment;
Fig. 3 is the block diagram according to the distribution that is used for the sub-piece of sequence of various embodiment;
Fig. 4 illustrates the SA preamble symbol structure according to embodiment;
Fig. 5 is the block diagram according to the many antennas that the interweave example that is used for sub-piece of embodiment;
Fig. 6 is the block diagram that illustrates according to the SA preamble distribution of various embodiment;
Fig. 7 is the block diagram according to the many antennas that the interweave example that is used for sub-piece of embodiment; And
Fig. 8 is the flow chart according to some embodiments of the present invention.
Embodiment
The embodiment that transmits the system and method for preamble for mobile WiMAX system has been described among this paper.In the following description, many specific details have been stated for the detailed understanding that embodiments of the invention are provided.Yet those skilled in the relevant art will recognize that the present invention can put into practice under the situation of neither one or a plurality of these specific detail, perhaps wait through other method, assembly, material and put into practice.In other instance, known structure, material or operation are not shown specifically or describe, in order to avoid obscure aspect of the present invention.
Everywhere the finger of quoting of " embodiment " or " embodiment " is comprised at least one embodiment of the present invention together with special characteristic, structure or the characteristic that this embodiment describes at this specification.Therefore, " at an embodiment " or " in one embodiment " phrase of occurring in specification each position everywhere not necessarily all refer to identical embodiment.In addition, specific characteristic, structure or characteristic can make up in one or more embodiments in any suitable manner.
When transmitting particularly in 802.16m, in superframe, uses WiMAX main senior preamble (PA preamble) and three second advanced preambles (SA preamble).These senior preambles are orientated first symbol of each frame in the superframe as, and wherein, common every superframe has four frames.The PA preamble design is used for synchronously, and first symbol of orientating second frame in the superframe as is estimated and correction to allow timing off-set and carrier shift.Each SA preamble design becomes to carry the specific preamble in sub-district, and orientates first symbol of each frame of three frames of residue as.The SA preamble also can be used for the fine tuning of sequential and carrier synchronization.
The PA preamble can have the sequence length of definition and by the distribution of the defined subcarrier of certain function, said function representation is following:
PAPreambleCarrierSet＝2·k+41
Wherein: the PAPreambleCarrierSet assignment of allocation is to all subcarriers of PA preamble, and k is from 0 to 215 running index (running index).
The SA preamble can be used for detecting the SA preamble index.The fine tuning of sequential and frequency shift (FS) can use the SA preamble index to provide.Also can estimate reception signal strength indicator information (RSSI) or path loss the strongest and/or the interference preamble.
Forward figure now to, Fig. 1 illustrates the cordless communication network 100 according to some embodiments of the present invention.Cordless communication network 100 comprises that summary is shown 110,120 and 130 a plurality of wired and/or wireless network.Particularly, cordless communication network 100 can comprise wireless MAN (WMAN) 110, wireless lan (wlan) 120 and wireless personal-area network (WPAN) 130.Though Fig. 1 illustrates three kinds of wireless networks, wireless communication system 100 can comprise in addition or cordless communication network still less and one or more cable network.For example cordless communication network 100 can comprise other WPAN, WLAN and/or WMAN.Method and apparatus described in this paper is unrestricted in this regard.
Cordless communication network 100 also comprises one or more platforms or station (STA); Comprise base station, senior base station, subscriber station, travelling carriage and/or senior mobile STA (AMS), its summary is shown multi radio AMS 135 that can carry out foreign peoples's radio communication through inserting a plurality of wireless networks and/or cable network and the single radio AMS 140 that can insert single wireless network or a plurality of networks at any time.For example; AMS 135 and 140 can comprise wireless electron device; Like desktop computer, laptop computer, handheld computer, flat computer, cell phone, pager, audio frequency and/or video player (for example; MP3 player or DVD player), game device, video camera, digital camera, guider (for example; The GPS device), radio peripheral apparatus (for example, printer, scanner, earphone, keyboard, mouse etc.), medical treatment device (for example, heart rate monitor, blood pressure monitor etc.) and/or other fixing, portable or mobile electronic installation that is fit to.Though Fig. 1 illustrates seven AMS, cordless communication network 100 can comprise more or less multi radio 135 and/or single radio AMS 140.
STA can use multiple modulation technique to communicate by letter through Radio Link; Like band spectrum modulation (for example, straight preface code division multiple access (DS-CDMA) and/or frequency hopping code division multiple (FH-CDMA)), Time Division Multiplexing modulation, frequency division multiplexing (FDM) modulation, OFDM (OFDM) modulation, OFDM (OFDMA), multi-carrier modulation (MDM) and/or other modulation techniques that is fit to.
In one embodiment, STA can use direct sequence spread spectrum (DSSS) modulation and/or FHSS (FHSS) modulation to realize WLAN 120 (for example, 802.11 standard series developed of Institute of Electrical and Electric Engineers (IEEE) and/or the modification and the evolution of these standards).For example, AMS135 and/or 140 can communicate by letter with the device that is associated with WLAN 120 or access point 120 through Radio Link.AP 125 can be coupled to the router (not shown) in operation.Alternative is that AP 125 can be integrated in the single assembly (for example, wireless router) with router.
Through radiofrequency signal being divided into a plurality of little subsignals; These subsignals transmit at different frequency again simultaneously; Subscriber station, travelling carriage or senior travelling carriage (for example, multi radio AMS 135 and single radio AMS 140) can use OFDM or OFDMA to modulate and transmit a large amount of numerical datas.Particularly, stand and to use OFDM or OFDMA to modulate to realize WMAN110.Multi radio AMS 135 and single radio AMS 140 can according to IEEE be 802.16 standard series developed of broadband wireless access (BWA) network that be provided for fixing, portable and/or that move (for example; The IEEE std.802.16 of issue in 2004) operates, so that communicate by letter with the base station 105 that can be senior base station (ABS) through Radio Link.
Though some above-mentioned examples are to describe with respect to the standard of IEEE exploitation in the above; But method and apparatus disclosed herein can easily be applicable to many standards and/or standard that other special interest group and/or standard development tissue (for example, Wireless Fidelity (Wi-Fi) alliance, inserting of microwave whole world interoperability (WiMAX) forum, Infrared Data Association (IrDA), third generation partner program (3GPP) etc.) are developed.In certain embodiments; Access point 125 can be communicated by letter according to the particular communication standard with base station 105; For example comprise Institute of Electrical and Electric Engineers (IEEE) standard of IEEE 802.11 (a), 802.11 (b), 802.11 (g), 802.11 (h) and/or 802.11 (n) and/or be used for the proposal standard of WLAN; But scope of the present invention is unrestricted in this regard, because they also can be suitable for according to other technology and standard transmits and/or received communication.In certain embodiments; Access point 125 can be communicated by letter according to the IEEE 802.16-2004 that is used for wireless MAN (WMAN), IEEE 802.16 (e) and IEEE802.16 (m) standard (comprising its variation and evolution) with base station 105; But scope of the present invention is unrestricted in this regard, because they also can be suitable for according to other technology and standard transmits and/or received communication.More information for relevant IEEE 802.11 and IEEE 802.16 standards; See also " IEEE Standards for Information Technology-Telecommunications and Information Exchange between Systems "-local area network (LAN)-particular requirement-the 11st part " Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY); ISO/IEC 8802-11:1999 ", and metropolitan area network-particular requirement-the 16th part: " Air Interface for Fixed Broadband Wireless Access Systems " (in May, 2005) and related amendments/versions.
WMAN 110 and WLAN 120 can be through being coupled to shared public or private network 145 to being connected of Ethernet, digital subscribe lines (DSL), telephone wire, coaxial cable and/or any wireless connections etc. in operation; For example internet, telephone network (for example, public switch telephone network (PSTN)), Local Area Network, cable system and/or another wireless network.In one example, WLAN 120 can be coupled to shared public or private network 145 through AP 125 and/or the WPAN STA 115 that serves for WPAN 130 in operation.In another example, WMAN 110 can be coupled to shared public or private network 145 through base station 105 in operation.
Cordless communication network 100 can comprise the cordless communication network that other is fit to.For example, cordless communication network 100 can comprise wireless wide area network (WWAN) (not shown).Stand and to operate to support WWAN according to other wireless communication protocol.Particularly; These wireless communication protocols can be based on simulation, numeral and/or dual-mode communication systems technology; For example global system for mobile communications (GSM) technology, WCDMA (WCDMA) technology, General Packet Radio Service (GPRS) technology strengthen data gsm environments (EDGE) technology, Universal Mobile Telecommunications System (UMTS) technology, based on modification and evolution and/or other wireless communication standard that is fit to of these technological standards, these standards.
WPAN can operate will realize the throughput of about several Gbps in the 60GHz frequency band.Present a plurality of standardization body (Institute of Electrical and Electric Engineers (IEEE) 802.15.3c, EEE802,11ad, wireless HD SIG, ECMA TG20) is being devoted to develop the standard that is used for this type of millimeter wave WPAN 130 and WLAN 120 networks.Though Fig. 1 illustrates WMAN 110, WLAN 120 and WPAN 130, cordless communication network 100 can comprise other combination of WPAN, WLAN, WMAN and/or WWAN.Method and apparatus described in this paper is unrestricted in this regard.
Cordless communication network 100 can also comprise other WPAN, WLAN, WMAN and/or WWAN device (not shown); For example Network Interface Unit and peripheral unit are (for example; NIC (NIC)), access point (AP), point of departure, end points, gateway, bridger, hub etc. again, calculate annex (PCA) system and/or any communication system that other is fit to realize cell phone system, satellite system, PCS Personal Communications System (PCS), two-way radio system, unidirectional pager system, two-way paging device system, personal computer (PC) system, PDA(Personal Digital Assistant) system, individual.Though described some example above, coverage of the present disclosure is not limited thereto.
Fig. 2 illustrate according to various embodiment be used to handle preamble sequence in case between the platform of Fig. 1 or station the block diagram of the equipment of communication.In Fig. 2, transmitting processing module 204 provides code signal 232 to modulation module 206.Code signal 232 can comprise the preamble sequence that is provided by preamble module 216.In addition, code signal 232 can comprise processing and information sequence mapping that is generated by channel coding module 218.These sequences for example can be included in and transmit in the grouping.
RF front end 208 is switching signal between antenna 210, modulation module 206 and demodulation module 212.Particularly, RF front end 208 is the signal 234 of wireless transmission preparations modulation.This signal is again through antenna 210 wireless transmission.In addition, RF front end 208 is demodulation module 212 wireless signal that 214 preparations receive through antenna 210 with receiving processing module.RF front end 208 can comprise various assemblies (for example, electronic device), like amplifier, filter, upconverter, low-converter, duplexer (diplexer) and/or circulator.In addition, antenna 210 can be individual antenna or a plurality of antenna.Yet embodiment is not limited to these examples.
As shown in Figure 2, RF front end 208 can provide and receive signal 236 to demodulation module 312.After reception, demodulation module 212 can be carried out various operations.For example, demodulation module 212 can be carried out the analog-to-digital conversion that receives signal 236, on reception signal 236, carries out demodulation then.This type of demodulation can relate to the execution fast Fourier transform (FFT).These operations produce the signal 238 of demodulation, and this signal sends to receiving processing module 214 again.
As shown in Figure 2, receiving processing module 214 can comprise preamble detection module 220 and channel decoding module 222.Channel decoding module 222 is carried out various operations on the non-preamble portion of the signal 238 of demodulation.For example, channel decoding module 222 can be separated this type of part of the signal 238 of demodulation and is mapped to symbol.In addition, channel decoding module 222 can be carried out various operations on these symbols, for example deinterleaving, fec decoder and/or separate randomization.Yet embodiment is not limited to these operations.As the result of this generic operation, receiving processing module 214 produces the information sequence 240 that sends to host module 202.
For the purpose of (and not being restriction) is described, Fig. 2 illustrates the realization 200 that comprises individual antenna (210).Yet embodiment is not so limited.Any amount of antenna 210 all may be utilized.Through this type of antenna, can exchange wireless signal with remote-control device.
As possibly requiring the operation in some network, some realizations can only comprise that preamble transmits characteristic, and other realization can only comprise the preamble detected characteristics.Therefore, the realization that only transmits preamble can be ignored preamble detection module 220.On the contrary, only the realization of receiving preamble can be ignored preamble module 216.Yet realization can comprise that preamble transmits characteristic and preamble detected characteristics.
In addition, last stated the element of Fig. 2 can in hardware, software, firmware or its any combination, realize.Therefore, realization can comprise one or more processors of carrying out middle instructions stored of tangible medium (for example, memory) or control logic.In addition, preamble module 216 can comprise that medium is with the storage preamble sequence.Yet embodiment is not limited to these demonstrations of medium and uses.
In the selective channel of cordless communication network 100, code word can be seen a plurality of channel quality (q
1, q
2..., q
N).To in the quoting of channel quality, for SA preamble (N
SAP) the length of sequence be 144 for 512 fast Fourier transform (FFT)s in one embodiment, be 288 for 1024-FFT, and be 576 for 2048-FFT.When subcarrier index 256,512 and 1024 is respectively 512-FFT, 1024-FFT and 2024-FFT when being preserved for the DC 306 of Fig. 3, the distribution of subcarrier can realize according to equality 1;
Wherein:
-SAPreambleCarrierSet assignment of allocation to specific SA preamble all subcarriers;
-n is the SA preamble carrier set 0,1 of expression section ID and 2 index;
-k is the running index 0 to N for each FFT size
SAP-1; And
Do not adopt cyclic shift.
Each section uses in following mode and comes from the SA preamble that three carrier set in the available carrier wave set are formed:
Section 0 is used SA preamble carrier set 0.
Section 2 is used SA preamble carrier set 2.
Each cell ID (ID) has from 0 to 767 integer value (IDCell).In equality 2, IDCell is defined by segment index and every segment index;
IDcell=256IdIdx (equality 2)
Wherein:
-n is the SA preamble carrier set 0,1 of expression section ID and 2 index,
Idx=2mod (q, 128)+(q/128), wherein, q is 0 to 255 running index.
The SA preamble sequence is by subregion, and each subregion (partition) is exclusively used in specific base stations (BS) type, for example grand BS, femto BS or the like.Partition information is broadcasted in the system information of expansion.
In order to support Femto cell to dispose, if Femto cell BS is synchronized to macrocell BS, then femto BS can through with overlapping macrocell BS employed different section or its SA preamble sequence of the incompatible transmission of sets of subcarriers.The segment information of overlapping macrocell BS can by means of through one or more backbone networks and macrocell BS communicate by letter or the activity scanning of the SA preamble that macrocell BS is transmitted obtains.
For the 512-FFT size, SA preamble sequence (it can be 144 bit sequences in BPSK or be 288 bit sequences in QPSK) is divided into 8 main sub-pieces, that is, and and A, B, C, D, E, F, G and H.The length of every sub-block can be to use 18 bits of binary phase shift keying (BPSK) or 36 bits in the QPSK (QPSK).Each section ID has the different sequences of the sub-piece that comprises every section ID 8 sub-block, and wherein, 18 bits of minimum effective bit (LSB) are used to represent the binary sequence of every sub-block.Binary sequence 0,1} be mapped to real number+1 ,-1}.As shown in Figure 3, for the size of the 512-FFT shown in element 310, A, B, C, D, E, F, G and H use differential coding to modulate, and are mapped in order on the cyclic shift SA preamble sets of subcarriers 300 corresponding to section ID with ascending order.For higher FFT size, sub-basically piece (A, B, C, D, E, F, G, H) repeats with same sequence.For example; In the 1024-FFT size shown in the element 312 of Fig. 3, E, F, G, H, A, B, C, D, E, F, G, H, A, B, C, D is modulated and be mapped in order corresponding to the cyclic shift SA preamble sets of subcarriers of section ID with ascending order and close.The example of 2048FFT size is shown in the element 314.
After using sub-carrier mapped based on equality 1, application cycle is displaced to and surpasses three continuous subcarriers.Every sub-block has shared skew.The cyclic shift pattern (pattern) of every sub-block is:
[2,1,0 ..., 2,1,0 ..., 2,1,0,2,1,0, DC, 1,0,2,1,0,2 ..., 1,0,2 ..., 1,0,2] wherein, displacement is the ring shift right position.Every sub-piece application cycle displacement can avoid with for example 802.16e preamble (wherein, the .16e preamble does not have cyclic shift) leave over obscuring of preamble.The cyclic shift sets of subcarriers provides the little crosscorrelation of leaving over preamble with for example IEEE 802.16e preamble.Therefore, avoid leaving over obscuring of preamble what leave over STA.
On the contrary, when given segment number (0,1 or 2), the .16e preamble has the shared skew on all subcarriers.In one embodiment; The STA that configuration is used for 802.16e communication will detect the .16e preamble; And configuration is used for the STA of 802.16m communication and will detects the .16m preamble, comprises an embodiment who disposes the STA that the mixed mode that is used for using .16e and .16m to communicate communicates by letter.
For 512-FFT size, right cyclic shift (0,2,1,0,1,0,2,1) below sub-piece (A, B, C, D, E, F, G, H) experiences respectively.Fig. 4 illustrates the symbolic construction of the SA preamble that is used for 512-FFT in the frequency domain, comprises SA preamble carrier set
0402, SA preamble carrier set
1404 with SA preamble carrier set
2406, indicate every group of 54 carrier set.
In having an embodiment of the multiaerial system of multiple-input and multiple-output (MIMO) antenna system for example, SA preamble code block or sub-piece interweave on a plurality of antennas as follows.For the 512-FFT size, the SA preamble that Fig. 5 illustrates for 1,2,4 and 8 antenna distributes.As an example, for single antenna devices, all 8 sub-block are transmitted by antenna, comprise sub-piece A, B, C and D and sub-piece E, F, G and the H in group 504 of group in 502.Every day, line sent four sub-block in dual-antenna system, and every day, line sent two sub-block in four antenna systems, and line sends a sub-block every day in eight antenna system (not shown).
The SA preamble that Fig. 6 illustrates for 1,2,4 and 8 antenna of 1024-FFT size distributes.SA preamble code block or sub-piece interweave on antenna as follows.For single antenna devices, 16 sub-block are transmitted by an antenna, comprise sub-piece E, F, G, H, A, B, C and D and sub-piece E, F, G, H, A, B, C and the D in group 604 of group in 602.The structure that use interweaves, every day, line sent eight sub-block in dual-antenna system, and every day, line sent four sub-block in four antenna systems, and line sends two sub-block every day in eight antenna system (not shown).
The SA preamble that Fig. 7 illustrates for 1,2,4 and 8 antenna of 2048-FFT size distributes.Be similar to the example that provides among Fig. 6 and Fig. 7, SA preamble code block or sub-piece interweave on antenna.For a single aerial system, transmit 32 sub-block through an antenna, every day, line transmitted 16 sub-block in dual-antenna system, and line transmits eight sub-block every day in four antenna systems.
In one embodiment, let piece represent eight continuous sub-piece { E, F, G, H, A, B, C, D}.It is that the algorithm of a plurality of transmission antennas of 2 power can be described below that preamble code block or sub-piece are assigned to antenna amount.If:
N
t: the quantity that transmits antenna
N
b: the sum of piece
N
s: the sum of sub-piece; N
s=8*N
b
N
Bt: the quantity of every antenna block;
N
St: every day line piece quantity;
If (N
Bt>=1): stride N
tIndividual antenna distribution continuous blocks;
For given antenna, with N in period
tCome repeatable block; And
Piece position=the t+p*N of (t+1) individual antenna
t, wherein, t=0,1 ..., N
t-1, p=0,1 ..., N
Bt-1
Otherwise, if (N
St=4):
Then stride per 2 continuous antennas interweave said 8 sub-block { E, F, G, H, A, B, C, D};
Piece [E, 0, G, 0, A, 0, C, 0] sends from antenna i at piece position: floor (i/2);
Piece [0, F, 0, H, 0, B, 0, D] sends from antenna i+1 at piece position: floor ((i+1)/2), wherein, i=0,2,4 ..., N
t
Otherwise, if (N
St=2):
Then stride per 4 continuous antennas interweave said 8 sub-block { E, F, G, H, A, B, C, D};
Piece [E, 0,0,0, A, 0,0,0] sends from antenna i at piece position: floor (i/4);
Piece [0,0, G, 0,0,0, C, 0] sends from antenna i+1 at piece position: floor ((i+1)/4);
Piece [0, F, 0,0,0, B, 0,0] sends from antenna i+2 at piece position: floor ((i+2)/4);
Piece [0,0,0, H, 0,0,0, D] sends from antenna i+3 at piece position: floor ((i+3)/4), wherein, i=0,4,8 ..., N
t
Otherwise:
Stride per 8 continuous antennas interweave said 8 sub-block E, F, G, H, A, B, C, D}, promptly every day, line sent 1 sub-block;
Piece [E, 0,0,0,0,0,0,0] sends from antenna i at piece position: floor (i/8);
Piece [0, F, 0,0,0,0,0,0] sends from antenna i+1 at piece position: floor ((i+1)/8);
Piece [0,0, G, 0,0,0,0,0] sends from antenna i+2 at piece position: floor ((i+2)/8);
Piece [0,0,0, H, 0,0,0,0] sends from antenna i+3 at piece position: floor ((i+3)/8);
Piece [0,0,0,0, A, 0,0,0] sends from antenna i+4 at piece position: floor ((i+4)/8);
Piece [0,0,0,0,0, B, 0,0] sends from antenna i+5 at piece position: floor ((i+5)/8);
Piece [0,0,0,0,0,0, C, 0] sends from antenna i+6 at piece position: floor ((i+6)/8);
Piece [0,0,0,0,0,0,0, D] sends from antenna i+7 at piece position: floor ((i+7)/8); Wherein, i=0,8 ..., N
t
At each time frame, the structure of transmission is striden the transmission antenna and is rotated.Transfer structure forms from piece based on the quantity of a plurality of transmission antennas and piece.In an embodiment, use the phase place rotation to stride the transmission antenna and rotate transfer structure.The phase place rotation can be selected through random search.
For example, we consider to have the 512-FFT system of 4 transmission antennas.At the f frame, preamble structure therefor [A, 0,0,0, E, 0,0,0] is through first antenna transmission, and structure [0,0,0, D, 0,0,0, H] is through the 4th antenna transmission.Therefore, at (f+1) frame, structure [0,0,0, D, 0,0,0, H] is through first antenna transmission, and structure [A, 0,0,0, E, 0,0,0] is through second antenna transmission.
Use different FFT value lifting (boosting) rank big or small and antenna amount of BPSK following:
| Antenna/ |
512 | | 2k | |
| 1 | 1.5928 | 1.9516 | 1.4748 | |
| 2 | 2.1841 | 2.5474 | 2.0800 | |
| 4 | 2.8489 | 3.1047 | 3.0915 | |
| 8 | 3.5523 | 4.0273 | 4.3691 |
BPSK SA preamble promotes rank
Can use alternative modulation technique, for example QPSK or 8-phase shift keying (8PSK) cause promoting rank specific to the SA preamble of the modulation technique of using.
For single antenna BPSK embodiment, the value through 1.5928 promotes and transmits the SA preamble.The SA preamble that promotes at k subcarrier can be written as:
c
k＝1.5928·b
k
Wherein, b
kSA preamble (+1 or-1) before expression promotes.
In one embodiment, the piece sequence coverage that is used for the every sub-block of structure for transmission antenna and any bandwidth optimization of any amount+1 ,-1}.Binary sequence 0,1} be mapped to real number+ 1 ,-1}.The piece sequence coverage that is used for every kind of situation of BPSK is:
| (FFT, antenna amount) section ID | 0 | 1 | 2 |
| (512，1) | DE | DE | 0A |
| (512，2) | 04 | C0 | 28 |
| (512，4) | 20 | 00 | 90 |
| (512，8) | 00 | 00 | 00 |
| (1024，1) | 7CD6 | 7B2E | C66C |
| (1024，2) | 1A1A | E2E2 | 0A0A |
| (1024，4) | 1010 | 9090 | 2828 |
| (1024，8) | 2020 | A0A0 | 8080 |
| (2048，1) | 68E7E631 | FC8474DB | 69C337F3 |
| (2048，2) | 2C210259 | C2042058 | 7D160BC4 |
| (2048，4) | 6A5D2AF2 | 6476EDE6 | 56C6A39B |
| (2048，8) | E659356A | 958047EE | 1AD81B52 |
BPSK SA preamble code block sequence coverage
Can use alternative modulation technique, for example QPSK or 8-phase shift keying (8PSK) cause specific to the SA preamble code block sequence coverage value of the modulation technique of using.The piece sequence coverage can reduce peak value does not influence the detection performance to average power ratio (PAPR).In addition, need not to know the value of piece sequence such as STA such as senior travelling carriage 140 of single radio or the senior travelling carriages 135 of multi radio, because every sub-piece carries out differential coding and detection.
Embodiment can be described further with reference to the figure and the appended example of back.Some figure can comprise logic flow.Though this type of figure that appears among this paper can comprise specific logic flow, can understand, logic flow only provides the example that can how to realize the general utility functions property described in this paper.In addition, given logic flow needn't necessarily be carried out with the order that appears, only if indication is arranged in addition.In addition, given logic flow can be realized through hardware element, software element or its any combination carried out by processor.Embodiment is unrestricted in this context.
Fig. 8 is the flow chart according to some embodiments of the present invention.In element 1800, form a plurality of carrier set from second advanced (SA) preamble, wherein, each carrier set comprises sub-piece.In element 810, confirm to be used to transmit the non-overlapped pattern of carrier set, and in element 820, use the OFDMA technology to transmit carrier set through a plurality of antennas.In one embodiment, form three SA preamble carrier set, but in alternative, can form still less or other carrier set.In addition, the non-overlapped pattern that is used to transmit carrier set can provide minimized peak value to average power ratio (PAPR).
The top description of illustrated embodiment of the present invention (comprise summary described in) is not to be intended to be exhaustive or limit the invention to disclosed precise forms.Though described specific embodiment of the present invention and example at this paper for illustrative purposes, the various modifications that are equal to are possible within the scope of the invention, will recognize like those skilled in the relevant art.
Embodiments of the invention can be used as or the support software program, and said software program is gone up in the process nuclear (the for example processor of computer) of a certain form and carried out, perhaps otherwise on machine-readable medium or interior realization or implementation.But the present invention can be provided as computer program or software; Said program product or software can comprise the tangible machine-readable medium that stores instruction on it, and said instruction can be used for computer (or other electronic installation) programming to carry out according to process of the present invention.This type of software can be stored in the memory in the system.Similarly, code can be distributed through network or by means of other computer-readable media.Therefore; Machine-readable medium can comprise and with machine (for example being used for; Computer) any mechanism of information is stored or transmitted to readable form; But be not limited to the transmission of floppy disk, CD, compact disk, read-only memory (CD-ROM) and magneto optical disk, read-only memory (ROM), random-access memory (ram), Erasable Programmable Read Only Memory EPROM (EPROM), Electrically Erasable Read Only Memory (EEPROM), magnetic or optical card, flash memory, the transmitting signal (for example, carrier wave, infrared signal, digital signal etc.) through internet, electricity, light, sound or other form or like that.
Correspondingly, computer-readable media comprises and is suitable for storing or transmit the medium/machine-readable medium of any kind of e-command or information with machine (for example computer) readable form.In addition, the present invention also can be used as computer program and downloads.Therefore, program can be transferred to requesting computer (for example, client) from remote computer (for example, server).The transmission of program can be through communication link (for example modulator-demodulator, network connect or be like that), by means of the data-signal of electricity, light, sound or other form implemented in carrier wave or other communications media.
Term " wireless " and derivatives thereof can be used for describing the circuit, device, system, method, technology, communication channel etc. that come Data transmission through the electromagnetic radiation of the modulation of non-solid state media through using.This term does not hint that the device that is associated does not comprise any lead, but in certain embodiments, they possibly not comprise.The wireless device that term " portable radio " is used for describing it can moved when communicating by letter.
In view of above-mentioned detailed description, can carry out these modifications to the present invention.The term that uses in the claim of enclosing should not be construed as and limits the invention to disclosed specific embodiment in specification and the accompanying drawing.On the contrary, scope of the present invention will be come definite fully by the claim of enclosing, and claim will be explained according to the establishment principle that claim is explained.
Claims (20)
1. method comprises:
Processing comprises the superframe of a plurality of sequenced frames to be used for using the transmission of the technological cordless communication network of OFDM (OFDMA); The frame of wherein said a plurality of sequenced frames comprises second advanced preamble (SA preamble) sequence that is divided into many sub-block, and wherein said many sub-block are closed with the SA preamble sets of subcarriers that ascending order is mapped to cyclic shift in an orderly manner.
2. the method for claim 1 also is included in the said many sub-block that interweave on a plurality of antennas.
3. the method for claim 1, wherein superframe is processed in senior base station (ABS).
4. the method for claim 1 also comprises and uses differential coding to said sub-piece.
5. method as claimed in claim 4, the SA preamble of wherein said cyclic shift is corresponding to section ID.
6. method that is used for transmitting through a plurality of antennas second advanced preamble (SA preamble) comprises:
Form a plurality of carrier set of said SA preamble, wherein each carrier set comprises sub-piece;
Confirm to be used to transmit the non-overlapped pattern of said carrier set; And
Use OFDM (OFDMA) technology to transmit said carrier set through said a plurality of antennas.
7. method as claimed in claim 6, the said non-overlapped pattern that wherein is used to transmit said carrier set minimizes peak value to average power ratio (PAPR).
8. method as claimed in claim 6 also comprises forming three SA preamble carrier set.
9. equipment comprises:
Antenna;
Memory module; And
Processor; Be coupled to said memory module; Be used for carrying out said memory module stored instruction set, said instruction set is used to form the subclass of the sub-piece of second advanced preamble (SA preamble), confirms to be used to transmit the non-overlapped pattern of the said subclass of sub-piece; And use OFDM (OFDMA) technology to transmit the said subclass of sub-piece through said a plurality of antennas.
10. equipment as claimed in claim 9, wherein said equipment are senior base station (ABS) or senior travelling carriage (AMS).
11. equipment as claimed in claim 10, the said subclass that also is included in the sub-piece that interweaves on said a plurality of antenna is to reduce peak value to average power ratio (PAPR).
12. article that comprise stored program tangible machine-readable medium, said program can be carried out with manner of execution by machine, comprising:
Be formed for the sequence of the sub-piece of SA preamble;
Segment identification (ID) is associated with the said sequence of sub-piece;
Modulate said sub-piece; And
Use sub-carrier mapped through said sub-piece being mapped on the sets of subcarriers corresponding to the cyclic shift of said section ID in an orderly manner with ascending order.
13. article as claimed in claim 12 also are included in and use said cyclic shift to surpassing three continuous subcarriers after using said sub-carrier mapped.
14. a method that is used to generate second advanced preamble (SA preamble) comprises:
Be formed for the sequence of the sub-piece of said SA preamble;
Segment identification (ID) is associated with the said sequence of sub-piece;
Modulate said sub-piece; And
Use sub-carrier mapped to be used for transmission through said sub-piece being mapped to close corresponding to the sets of subcarriers of the cyclic shift of said section ID in an orderly manner through antenna with ascending order.
15. method as claimed in claim 14 also is included in and uses said cyclic shift to surpassing three continuous subcarriers after using said sub-carrier mapped.
16. method as claimed in claim 14, wherein said displacement are the ring shift right positions.
17. method as claimed in claim 16, wherein the said sets of subcarriers of cyclic shift reduces the crosscorrelation with the preamble of leaving over.
18. a method that transmits second advanced preamble (SA preamble) comprises:
Generate a plurality of, wherein each piece comprises many sub-block;
Quantity based on a plurality of transmission antennas and piece forms transfer structure from said;
Be the every sub-block assignment blocks sequence coverage in each transfer structure; And
Striding said transmission antenna uses phase place to rotate said transfer structure.
19. method as claimed in claim 18, wherein said sequence coverage to the every sub-block in each transfer structure be+1 ,-1}.
20. method as claimed in claim 19, wherein binary sequence 0, and 1} be mapped to real number+1 ,-1}.
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| US12/660,295 US8351322B2 (en) | 2009-03-03 | 2010-02-24 | Transmission of preamble code for mobile WiMAX systems |
| PCT/US2010/026008 WO2010101975A2 (en) | 2009-03-03 | 2010-03-03 | Transmission of preamble code for mobile wimax systems |
Publications (2)
| Publication Number | Publication Date |
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| CN2010800107884A Pending CN102342038A (en) | 2009-03-03 | 2010-03-01 | Transmission of channel quality data in wireless communication systems |
| CN201080009572.6A Expired - Fee Related CN102326336B (en) | 2009-03-03 | 2010-03-01 | Differential codebook for wireless network, mimo beamforming system using same, and method of reducing quantization error in mimo beamforming system for wireless network using same |
| CN201080010811.XA Expired - Fee Related CN102342074B (en) | 2009-03-03 | 2010-03-03 | Transmission of preamble code for mobile wimax systems |
| CN2010800107920A Pending CN102342073A (en) | 2009-03-03 | 2010-03-03 | Burst size signaling and partition rule |
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| CN201080009572.6A Expired - Fee Related CN102326336B (en) | 2009-03-03 | 2010-03-01 | Differential codebook for wireless network, mimo beamforming system using same, and method of reducing quantization error in mimo beamforming system for wireless network using same |
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Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7907677B2 (en) * | 2007-08-10 | 2011-03-15 | Intel Corporation | Open loop MU-MIMO |
| JP2011526439A (en) * | 2008-07-03 | 2011-10-06 | ノーテル・ネットワークス・リミテッド | Method and apparatus for performing handoff in a frequency division multiplexing network |
| EP2144464B1 (en) * | 2008-07-07 | 2016-10-12 | Samsung Electronics Co., Ltd. | Method for handoff during connected mode of a multimode mobile station in a mixed deployment |
| US8301177B2 (en) * | 2009-03-03 | 2012-10-30 | Intel Corporation | Efficient paging operation for femtocell deployment |
| CN102396248B (en) * | 2009-03-16 | 2016-08-17 | 华为技术有限公司 | The transmission method of signal, communicator and system |
| KR101670744B1 (en) | 2009-04-13 | 2016-11-09 | 엘지전자 주식회사 | Uplink Signal Transmission and Reception Using the Optimized Rank 3 Codebook |
| US8238323B2 (en) * | 2009-06-11 | 2012-08-07 | Intel Corporation | OFDMA cellular network and method for mitigating interference |
| KR101618075B1 (en) | 2009-06-26 | 2016-05-09 | 삼성전자주식회사 | Apparatus and method for trnasmitting preamble in wireless communication system |
| US8582687B2 (en) | 2009-06-26 | 2013-11-12 | Plusn, Llc | System and method for controlling combined radio signals |
| US9210019B2 (en) * | 2009-06-26 | 2015-12-08 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting preamble in a wireless communication system |
| US8619673B2 (en) * | 2009-07-08 | 2013-12-31 | Mediatek Inc. | Preamble partition and cell identification procedure in wireless communication systems |
| WO2011046277A1 (en) * | 2009-10-12 | 2011-04-21 | Lg Electronics Inc. | Method for allocating preamble sequence subblock for supporting irregular system bandwidth in wireless communication system and an apparatus therefor |
| KR20110044938A (en) * | 2009-10-25 | 2011-05-03 | 엘지전자 주식회사 | A method for transmitting a SAR preamble, a base station, a method for receiving the SAR preamble, and a user equipment |
| US8379619B2 (en) * | 2009-11-06 | 2013-02-19 | Intel Corporation | Subcarrier permutation to achieve high frequency diversity of OFDMA systems |
| US8509170B2 (en) * | 2009-12-18 | 2013-08-13 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting preamble in broadband wireless communication system |
| KR101751060B1 (en) * | 2009-12-18 | 2017-06-28 | 엘지전자 주식회사 | Method and apparatus of allocating sounding channel in wireless communication system |
| US8510621B2 (en) * | 2009-12-29 | 2013-08-13 | Industrial Technology Research Institute | Method and apparatus for providing resource unit based data block partition |
| KR101717298B1 (en) * | 2010-05-10 | 2017-03-17 | 엘지전자 주식회사 | Method anda apparatus of allocating resource for uplink control channel in wireless communication system |
| US8594718B2 (en) | 2010-06-18 | 2013-11-26 | Intel Corporation | Uplink power headroom calculation and reporting for OFDMA carrier aggregation communication system |
| US9204328B2 (en) * | 2010-07-01 | 2015-12-01 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for determining a channel quality offset |
| US20120008639A1 (en) * | 2010-07-12 | 2012-01-12 | Futurewei Technologies, Inc. | System and Method for Operating with Groups of Communications Devices in a Wireless Communications System |
| US8619654B2 (en) | 2010-08-13 | 2013-12-31 | Intel Corporation | Base station selection method for heterogeneous overlay networks |
| US8446971B2 (en) * | 2010-08-23 | 2013-05-21 | Intel Corporation | Communication station and method for efficiently providing channel feedback for MIMO communications |
| KR20120036018A (en) * | 2010-10-07 | 2012-04-17 | 삼성전자주식회사 | Apparatus and method for frequency offset estimation for high speed in wireless communication system |
| JP5666871B2 (en) | 2010-10-12 | 2015-02-12 | シャープ株式会社 | Wireless communication system, base station apparatus, and wireless communication method |
| JP5723457B2 (en) * | 2011-03-16 | 2015-05-27 | エヌイーシー（チャイナ）カンパニー， リミテッドＮＥＣ（Ｃｈｉｎａ）Ｃｏ．，Ｌｔｄ． | Beam forming method and receiver |
| CN102917436B (en) * | 2011-08-02 | 2017-03-15 | 上海贝尔股份有限公司 | The method for carrying out uplink power control in the heterogeneous network of common cell ID |
| KR101221023B1 (en) | 2011-08-31 | 2013-01-21 | 충북대학교 산학협력단 | Method for generating differential codebook using temporally correlated in multiple input multiple output antenna transmission channels, and thereof recording medium |
| CN105591718B (en) | 2011-11-09 | 2019-10-01 | 华为技术有限公司 | Transmit the method and device of information |
| US9295030B2 (en) | 2011-12-02 | 2016-03-22 | Qualcomm Incorporated | Methods and apparatuses for improved paging area identifier selection in wireless networks containing low power base stations |
| CN103974265B (en) * | 2013-01-28 | 2017-11-03 | 华为技术有限公司 | The method and apparatus that a kind of uplink interference suppresses |
| CN103796229B (en) * | 2013-09-16 | 2017-09-12 | 中兴通讯股份有限公司 | A kind of session chainlink control method and device |
| JP6398728B2 (en) | 2014-07-11 | 2018-10-03 | ソニー株式会社 | Information processing apparatus and information processing method |
| CA2955611C (en) | 2014-08-07 | 2022-03-22 | Coherent Logix, Incorporated | Multi-partition radio frames |
| CA2956957C (en) * | 2014-08-07 | 2019-02-12 | ONE Media, LLC | Dynamic configuration of a flexible orthogonal frequency division multiplexing phy transport data frame |
| SE539871C2 (en) * | 2015-02-04 | 2017-12-27 | Lumenradio Ab | A method and a system for selecting communication parametersin a wireless network |
| CN106776531B (en) * | 2015-11-24 | 2020-02-11 | 北京国双科技有限公司 | Corpus processing method and apparatus |
| EP3403383B9 (en) * | 2016-01-14 | 2020-12-02 | Panasonic Intellectual Property Management Co., Ltd. | Transmission apparatus and transmission method for padding and packet extension for downlink multiuser transmission |
| MX2018010656A (en) * | 2016-03-29 | 2019-01-21 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Method and device for determining transmission resource for device-to-device communications. |
| US10873403B2 (en) | 2016-09-02 | 2020-12-22 | Qualcomm Incorporated | Signaling mechanism to enable local operation for multi-antenna wireless communication systems |
| CN106341216B (en) * | 2016-10-10 | 2019-07-12 | 东南大学 | A kind of wireless communication link adaptive approach and uplink downlink adaptive approach |
| US10686564B2 (en) * | 2017-04-18 | 2020-06-16 | Qualcomm Incorporated | Pre-timed and on-demand HARQ Ack feedback |
| US10938504B2 (en) * | 2017-05-05 | 2021-03-02 | Qualcomm Incorporated | Enhancements to modulation order determination |
| EP3525374B1 (en) | 2018-02-07 | 2021-10-06 | Volkswagen Aktiengesellschaft | Method for data communication between at least two participants of a wireless communication system, corresponding control unit and vehicle equipped with a control unit as well as computer program |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697438A (en) * | 2004-05-10 | 2005-11-16 | 印芬龙科技股份有限公司 | Preamble generator for a multiband OFDM transceiver |
| CN101107792A (en) * | 2005-09-15 | 2008-01-16 | 三洋电机株式会社 | Preamble design for MIMO-OFDM radio apparatus |
| CN101170534A (en) * | 2007-10-31 | 2008-04-30 | 中兴通讯股份有限公司 | A timing rough synchronization capturing method for mobile multimedia broadcast system |
| CN101374131A (en) * | 2007-08-20 | 2009-02-25 | 株式会社Ntt都科摩 | Method and apparatus of timing synchronization, leading symbol as well as method and apparatus for generating the same |
Family Cites Families (141)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272529A (en) * | 1992-03-20 | 1993-12-21 | Northwest Starscan Limited Partnership | Adaptive hierarchical subband vector quantization encoder |
| US6067458A (en) * | 1997-07-01 | 2000-05-23 | Qualcomm Incorporated | Method and apparatus for pre-transmission power control using lower rate for high rate communication |
| US6593937B2 (en) * | 1998-06-18 | 2003-07-15 | Sony Corporation | Method of and apparatus for handling high bandwidth on-screen-display graphics data over a distributed IEEE 1394 network utilizing an isochronous data transmission format |
| US6456858B1 (en) * | 1998-12-21 | 2002-09-24 | Verizon Wireless | System and methods in a dual mode wireless system for transmitting rescan command based on detected network conditions |
| US7783299B2 (en) * | 1999-01-08 | 2010-08-24 | Trueposition, Inc. | Advanced triggers for location-based service applications in a wireless location system |
| US6973140B2 (en) * | 1999-03-05 | 2005-12-06 | Ipr Licensing, Inc. | Maximizing data rate by adjusting codes and code rates in CDMA system |
| US6917603B2 (en) * | 2000-01-20 | 2005-07-12 | Nortel Networks Limited | Servicing multiple high speed data users in shared packets of a high speed wireless channel |
| US6891841B2 (en) * | 2001-03-12 | 2005-05-10 | Advent Networks, Inc. | Time division multiple access over broadband modulation method and apparatus |
| US20030039211A1 (en) * | 2001-08-23 | 2003-02-27 | Hvostov Harry S. | Distributed bandwidth allocation architecture |
| US7346032B2 (en) * | 2001-12-07 | 2008-03-18 | Qualcomm Incorporated | Method and apparatus for effecting handoff between different cellular communications systems |
| JP2003198651A (en) | 2001-12-27 | 2003-07-11 | Mitsubishi Electric Corp | Maximum doppler frequency estimating device and adaptively modulated radio communication equipment |
| KR100754552B1 (en) * | 2001-12-28 | 2007-09-05 | 삼성전자주식회사 | Apparatus for transmitting/receiving high speed-shared control channel in communication system using high speed downlink packet access scheme and method thereof |
| US20040105434A1 (en) * | 2002-08-19 | 2004-06-03 | Allan Baw | EtherCell |
| US20040203383A1 (en) * | 2002-12-31 | 2004-10-14 | Kelton James Robert | System for providing data to multiple devices and method thereof |
| US6927728B2 (en) | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
| US7251490B2 (en) * | 2003-06-18 | 2007-07-31 | Qualcomm Incorporated | System and method for GSM hard handoff |
| US7120854B2 (en) * | 2003-08-18 | 2006-10-10 | Texas Instruments Incorporated | Wireless access modem having downstream channel resynchronization method |
| US7336200B2 (en) * | 2003-09-05 | 2008-02-26 | Itron, Inc. | Data communication protocol in an automatic meter reading system |
| US8090857B2 (en) * | 2003-11-24 | 2012-01-03 | Qualcomm Atheros, Inc. | Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks |
| US7280804B2 (en) * | 2004-01-30 | 2007-10-09 | Intel Corporation | Channel adaptation using variable sounding signal rates |
| US8000223B2 (en) * | 2004-04-12 | 2011-08-16 | Broadcom Corporation | Method and system for multi-antenna preambles for wireless networks preserving backward compatibility |
| US20050257117A1 (en) * | 2004-05-12 | 2005-11-17 | Weirong Chiang | Method and circuit for determining an ending of an ethernet frame |
| KR100965694B1 (en) * | 2004-06-15 | 2010-06-24 | 삼성전자주식회사 | System and method for supporting soft handover in a broadband wireless access communication system |
| EP2442513A1 (en) * | 2004-06-24 | 2012-04-18 | Nortel Networks Limited | Preambles in OFDMA System |
| US7570696B2 (en) * | 2004-06-25 | 2009-08-04 | Intel Corporation | Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback |
| SE0401647D0 (en) * | 2004-06-28 | 2004-06-28 | Anoto Ab | Coding and decoding of data |
| KR101080539B1 (en) * | 2004-08-09 | 2011-11-04 | 엘지전자 주식회사 | Message transmission method for idle mode mobile terminal of broadband wireless access system |
| WO2006034577A1 (en) * | 2004-09-30 | 2006-04-06 | Nortel Networks Limited | Channel sounding in ofdma system |
| KR100589896B1 (en) * | 2004-12-17 | 2006-06-14 | 한국전자통신연구원 | Mobile terminal apparatus in orthogonal frequency division multiplexing access system and control method for controlling transmission power in the same apparatus |
| US7725796B2 (en) * | 2004-12-27 | 2010-05-25 | Lg Electronics Inc. | Allocating data bursts and supporting hybrid auto retransmission request in orthogonal frequency division multiplexing access radio access system |
| US7986633B2 (en) * | 2004-12-27 | 2011-07-26 | Lg Electronics Inc. | Method of controlling data transmission for multimedia and broadcasting services in a broadband wireless access system |
| KR101080970B1 (en) * | 2004-12-27 | 2011-11-09 | 엘지전자 주식회사 | Method for Transmitting Decode Information in Broadband Wireless Access System |
| KR100981514B1 (en) * | 2004-12-30 | 2010-09-10 | 삼성전자주식회사 | Method for allocation of adaptive subchannel and bits using partial channel feedback in orthogonal frequency division multiplexing access communication system |
| US8031793B2 (en) * | 2005-01-19 | 2011-10-04 | Dumitru Mihai Ionescu | Apparatus using concatenations of signal-space codes for jointly encoding across multiple transmit antennas, and employing coordinate interleaving |
| WO2006085732A1 (en) * | 2005-02-14 | 2006-08-17 | Lg Electronics Inc. | Method of controlling data transmission for mbs in broadband wireless access system |
| US8040831B2 (en) * | 2005-03-04 | 2011-10-18 | Cisco Technology, Inc. | Method and system for control channel beamforming |
| KR100950644B1 (en) * | 2005-03-04 | 2010-04-01 | 삼성전자주식회사 | Feedback method for mimo communication system |
| KR100896280B1 (en) * | 2005-03-30 | 2009-05-08 | 엘지전자 주식회사 | Method of Transmitting and Receiving Information of Allocating Uplink Region in Broadband Wireless Access System |
| DE102005022107B9 (en) * | 2005-05-12 | 2016-04-07 | Infineon Technologies Ag | Apparatus and method for determining a position of a bit error in a bit string |
| KR100703287B1 (en) * | 2005-07-20 | 2007-04-03 | 삼성전자주식회사 | System and method for transmitting/receiving resource allocation information in a communication system |
| US7457588B2 (en) * | 2005-08-01 | 2008-11-25 | Motorola, Inc. | Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network |
| US7660363B2 (en) * | 2005-08-22 | 2010-02-09 | Nec Laboratories America, Inc. | Minimum error rate lattice space time codes for wireless communication |
| CN101310551A (en) * | 2005-10-04 | 2008-11-19 | 艾利森电话股份有限公司 | Access control in radio access network having pico base stations |
| US20070105568A1 (en) * | 2005-10-04 | 2007-05-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Paging for a radio access network having pico base stations |
| US20070087767A1 (en) | 2005-10-17 | 2007-04-19 | Sameer Pareek | Techniques to manage paging operations for idle mode mobile stations |
| EP1775857B1 (en) * | 2005-10-17 | 2011-05-04 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system |
| US7693555B2 (en) | 2005-10-21 | 2010-04-06 | Intel Corporation | Sleep-mode wireless cell reselection apparatus, systems, and methods |
| US7636577B2 (en) | 2005-10-31 | 2009-12-22 | Intel Corporation | Method and apparatus to implement efficient paging in a wireless network |
| JP4843046B2 (en) * | 2005-11-07 | 2011-12-21 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Implicit signaling for link adaptation |
| US20070105600A1 (en) | 2005-11-08 | 2007-05-10 | Shantidev Mohanty | Techniques to communicate information between foreign agents and paging controllers |
| US8145243B2 (en) | 2005-11-08 | 2012-03-27 | Intel Corporation | Techniques for location management and paging in a communication system |
| US8396141B2 (en) * | 2005-11-29 | 2013-03-12 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient cell selection |
| US20070123287A1 (en) * | 2005-11-30 | 2007-05-31 | Motorola, Inc. | Method and apparatus for providing the status of a wireless communication device in a group network to other members in the group network |
| US7602745B2 (en) * | 2005-12-05 | 2009-10-13 | Intel Corporation | Multiple input, multiple output wireless communication system, associated methods and data structures |
| US8700082B2 (en) * | 2006-01-05 | 2014-04-15 | Qualcomm Incorporated | Power control utilizing multiple rate interference indications |
| US7885348B2 (en) * | 2006-02-09 | 2011-02-08 | Intel Corporation | MIMO communication system and method for beamforming using polar-cap codebooks |
| US20070191031A1 (en) | 2006-02-13 | 2007-08-16 | Shantidev Mohanty | Protocols for communication between paging controllers and paging agents during idle mode paging operations in a wireless network |
| WO2007107121A1 (en) * | 2006-03-22 | 2007-09-27 | Huawei Technologies Co., Ltd. | A method and apparatus for paging and stopping paging a mobile station in idle mode |
| US8277724B2 (en) * | 2006-03-31 | 2012-10-02 | The Invention Science Fund I, Llc | Sterilization methods and systems |
| WO2007123351A1 (en) * | 2006-04-25 | 2007-11-01 | Samsung Electronics Co., Ltd. | Method and apparatus for radio connection setup in a mobile communication system |
| JP4834471B2 (en) * | 2006-06-19 | 2011-12-14 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile station apparatus, base station apparatus, and paging method |
| US8391894B2 (en) | 2006-06-26 | 2013-03-05 | Intel Corporation | Methods and apparatus for location based services in wireless networks |
| US7540337B2 (en) * | 2006-07-03 | 2009-06-02 | Mcloughlin Stephen John | Adaptive apparatus, system and method for communicating with a downhole device |
| US20080076425A1 (en) * | 2006-09-22 | 2008-03-27 | Amit Khetawat | Method and apparatus for resource management |
| US7720490B2 (en) | 2006-07-17 | 2010-05-18 | Intel Corporation | Location update operations for idle mode terminals with a plurality of wireless communication interfaces |
| US20080014981A1 (en) | 2006-07-17 | 2008-01-17 | Muthaiah Venkatachalam | Methods and apparatus for providing idle mode operations for a platform with a plurality of wireless communication devices |
| US7725115B2 (en) | 2006-07-17 | 2010-05-25 | Intel Corporation | Paging operation for idle mode terminals with a plurality of wireless interfaces |
| CN101114851B (en) * | 2006-07-24 | 2010-10-20 | 大唐移动通信设备有限公司 | Power control method and device for HSDPA |
| JP5268237B2 (en) | 2006-07-28 | 2013-08-21 | シャープ株式会社 | Scheduling method, communication control device, and terminal device |
| KR101126491B1 (en) * | 2006-08-18 | 2012-04-13 | 후지쯔 가부시끼가이샤 | Communication systems |
| JP4923848B2 (en) | 2006-08-21 | 2012-04-25 | 日本電気株式会社 | COMMUNICATION SYSTEM AND COMMUNICATION METHOD, AND MOBILE STATION AND BASE STATION USED FOR THE SAME |
| ES2592909T3 (en) * | 2006-09-19 | 2016-12-02 | Alcatel Lucent | Procedure, server and base station for synchronizing portions of broadcast and multicast frames on WiMAX systems |
| US20080080371A1 (en) | 2006-09-28 | 2008-04-03 | Chunmei Liu | Macro-spatial network multiplexing |
| US7702029B2 (en) * | 2006-10-02 | 2010-04-20 | Freescale Semiconductor, Inc. | MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |
| US7925259B2 (en) * | 2006-10-03 | 2011-04-12 | Telefonaktiebolaget Lm Ericsson (Publ) | System, method, and arrangement for managing access denials in a wireless communication network |
| EP3694262A1 (en) * | 2006-10-03 | 2020-08-12 | InterDigital Technology Corporation | Combined open loop/closed lopp (cqi-based) uplink transmit power control with interference mitigation for e-utra |
| US7912491B2 (en) | 2006-10-10 | 2011-03-22 | Intel Corporation | Techniques to efficiently transmit control messages to idle and sleep mode users in OFDMA based wireless networks |
| US9066348B2 (en) | 2006-10-17 | 2015-06-23 | Intel Coporation | Device, system, and method for fast network entry for wireless devices in idle mode |
| US7809355B2 (en) | 2006-10-26 | 2010-10-05 | Intel Corporation | Techniques for identification of connected and idle mode users in wireless networks |
| US7911936B2 (en) | 2006-10-30 | 2011-03-22 | Intel Corporation | Techniques to reduce overhead in OFDMA based wireless networks |
| EP2060130A4 (en) * | 2006-10-31 | 2010-03-10 | Kineto Wireless Inc | Method and apparatus to enable hand-in for femtocells |
| US7990906B2 (en) | 2006-11-03 | 2011-08-02 | Fujitsu Semiconductor Limited | Frame structure for a relay station operating in mobile networks |
| GB2443465A (en) * | 2006-11-06 | 2008-05-07 | Fujitsu Ltd | Communication systems |
| US20080108336A1 (en) | 2006-11-08 | 2008-05-08 | Muthaiah Venkatachalum | Location-based services in wireless broadband networks |
| WO2008059355A2 (en) * | 2006-11-14 | 2008-05-22 | Nokia Corporation | Reserving resources for retransmissions on effected links in multi-hop networks |
| KR100930265B1 (en) * | 2006-11-16 | 2009-12-09 | 삼성전자주식회사 | Apparatus and method for decoding in broadband wireless access communication system |
| US20080119209A1 (en) * | 2006-11-21 | 2008-05-22 | Motorola, Inc. | Selection of wireless communication cells based on a mobility state of a wireless device |
| US7787891B2 (en) | 2006-12-20 | 2010-08-31 | Intel Corporation | Mobile station localization apparatus, systems, and methods |
| WO2008078394A1 (en) | 2006-12-26 | 2008-07-03 | Fujitsu Limited | Wireless communication method, wireless control station, and wireless base station |
| US7630355B2 (en) * | 2007-01-05 | 2009-12-08 | Mitsubishi Electric Research Laboratories, Inc. | Method and system for enabling HARQ operations on channels between stations in wireless communication networks |
| US7852794B2 (en) | 2007-01-22 | 2010-12-14 | Intel Corporation | Proxy IGMP client and method for providing multicast broadcast services in a broadband wireless access network |
| US20080214213A1 (en) | 2007-03-02 | 2008-09-04 | Kamran Etemad | Determining locations of mobile stations in wireless networks |
| US8355378B2 (en) | 2007-03-09 | 2013-01-15 | Intel Corporation | Hierarchical cell deployment |
| US7860469B2 (en) | 2007-03-19 | 2010-12-28 | Intel Corporation | Sleep optimization for mobile devices in a wireless network |
| GB2447635A (en) * | 2007-03-19 | 2008-09-24 | Fujitsu Ltd | Scheduling qos communications between nodes within a predetermined time unit in wimax systems |
| US8077657B2 (en) | 2007-03-19 | 2011-12-13 | Intel Corporation | Keep-alive handling in a wireless network |
| US7839945B2 (en) * | 2007-03-20 | 2010-11-23 | Nec Laboratories America, Inc. | Static and differential precoding codebook for MIMO systems |
| KR20080086780A (en) * | 2007-03-23 | 2008-09-26 | 삼성전자주식회사 | Method for allocating data burst in wireless mobile communication system |
| US7881722B2 (en) * | 2007-04-02 | 2011-02-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Selection of an uplink carrier frequency corresponding to one of co-sited cells having different coverage areas and supporting different uplink data rates |
| CN101291174B (en) * | 2007-04-16 | 2013-03-20 | 中兴通讯股份有限公司 | Method for enhancing transmission efficiency of physical layer in radio communication system |
| JP2008300995A (en) | 2007-05-29 | 2008-12-11 | Kyocera Corp | Radio base station and transmission control method |
| US8320284B2 (en) * | 2007-05-07 | 2012-11-27 | Nokia Corporation | Apparatus and method for channel reciprocity in a wireless network |
| US8743853B2 (en) | 2007-05-08 | 2014-06-03 | Intel Corporation | Techniques to include virtual private networks in a universal services interface |
| WO2008143423A1 (en) | 2007-05-17 | 2008-11-27 | Lg Electronics Inc. | Method for transmitting control information |
| KR101364917B1 (en) * | 2007-05-17 | 2014-02-19 | 엘지전자 주식회사 | Method for transmitting control information |
| US8027681B2 (en) * | 2007-06-05 | 2011-09-27 | Alcatel Lucent | Method and apparatus to allow hand-off from a macrocell to a femtocell |
| US8131286B2 (en) * | 2007-06-13 | 2012-03-06 | Motorola Mobility, Inc. | Technique for providing broadcast services in a cellular network |
| US8005487B2 (en) | 2007-06-14 | 2011-08-23 | Intel Corporation | Techniques for optimization of location determination in wireless network |
| US9078227B2 (en) | 2007-06-14 | 2015-07-07 | Intel Corporation | Location support in wireless networks |
| US8359037B2 (en) | 2007-06-29 | 2013-01-22 | Intel Corporation | Adaptive sleep area |
| JP5044017B2 (en) * | 2007-07-06 | 2012-10-10 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Method and apparatus for communication of channel quality information in a communication system |
| KR20090014727A (en) * | 2007-08-07 | 2009-02-11 | 삼성전자주식회사 | Apparatus and method for channel coding in wireless communication system |
| US8693406B2 (en) | 2007-08-09 | 2014-04-08 | Intel Corporation | Multi-user resource allocation and medium access control (MAC) overhead reduction for mobile worldwide interoperability for microwave access (WiMAX) systems |
| GB0716028D0 (en) * | 2007-08-16 | 2007-09-26 | Fujitsu Ltd | Communication systems |
| US8537774B2 (en) * | 2007-08-16 | 2013-09-17 | Apple Inc. | Capacity optimisation in a cellular wireless network |
| US7801231B2 (en) | 2007-09-27 | 2010-09-21 | Intel Corporation | Preamble techniques for communications networks |
| CN103957077B (en) * | 2007-10-01 | 2018-01-02 | 松下电器（美国）知识产权公司 | Reception device, dispensing device, data communications method and integrated circuit |
| US20090086657A1 (en) * | 2007-10-01 | 2009-04-02 | Comsys Communication & Signal Processing Ltd. | Hybrid automatic repeat request buffer flushing mechanism |
| US7894449B2 (en) * | 2007-10-03 | 2011-02-22 | Intel Corporation | Method and apparatus for encoding subscriber station identifications and connections in wireless communication networks |
| KR101532315B1 (en) * | 2007-10-15 | 2015-06-30 | 톰슨 라이센싱 | High definition television transmission with mobile capability |
| KR101452489B1 (en) * | 2007-10-18 | 2014-10-21 | 엘지전자 주식회사 | Method of receiving data in wireless communication |
| US8175022B2 (en) | 2007-12-19 | 2012-05-08 | Intel Corporation | Transmission of system configuration information in mobile WiMAX systems |
| KR101387530B1 (en) * | 2007-12-28 | 2014-04-21 | 엘지전자 주식회사 | Method of resouce allocation for HARQ |
| US8265006B2 (en) | 2007-12-31 | 2012-09-11 | Intel Corporation | Synchronization channel (preamble) structure for mobile worldwide interoperability for microwave access (WiMAX) systems |
| KR20090080723A (en) * | 2008-01-22 | 2009-07-27 | 삼성전자주식회사 | Apparatus and method for plannig wireless network |
| WO2009099308A2 (en) * | 2008-02-05 | 2009-08-13 | Lg Electronics Inc. | Method for transmitting control information in wireless communication system |
| EP3340491A1 (en) * | 2008-04-22 | 2018-06-27 | Advantech Wireless Ltd. | Method and apparatus for compensation for weather-based attenuation in a satellite link |
| US8160125B2 (en) * | 2008-04-25 | 2012-04-17 | Samsung Electronics Co., Ltd. | System for feeding back index of codeword matrix |
| WO2009136844A1 (en) * | 2008-05-07 | 2009-11-12 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and arrangements for paging a communication device |
| US8483041B2 (en) * | 2008-06-12 | 2013-07-09 | Qualcomm Incorporated | Methods and systems for sticky region allocation in OFDMA communication systems |
| US8526390B2 (en) * | 2008-06-12 | 2013-09-03 | Qualcomm Incorporated | Methods and systems for dynamic sticky region allocation in map-based communication systems |
| US9112562B2 (en) * | 2008-09-02 | 2015-08-18 | Intel Corporation | Techniques utilizing adaptive codebooks for beamforming in wireless networks |
| US8130728B1 (en) * | 2008-09-23 | 2012-03-06 | Clearwire Ip Holdings Llc | Dynamic transmission of DCD and UCD messages in a WiMAX network |
| US8804658B2 (en) | 2008-10-22 | 2014-08-12 | Mediatek Inc. | Method and apparatus for handover between IEEE 802.16e and 802.16m systems |
| US8200165B2 (en) * | 2009-06-26 | 2012-06-12 | Hongmei Sun | Techniques for transmission of channel quality data in wireless systems |
| US8737291B2 (en) * | 2008-12-23 | 2014-05-27 | Qualcomm Incorporated | Methods and systems for DL-MAP processing |
| US8320320B2 (en) * | 2008-12-31 | 2012-11-27 | Telecom Italia S.P.A. | Method and system for downlink transmission scheduling in multi-carrier networks |
| US8301177B2 (en) * | 2009-03-03 | 2012-10-30 | Intel Corporation | Efficient paging operation for femtocell deployment |
| US8560696B2 (en) * | 2009-04-28 | 2013-10-15 | Intel Corporation | Transmission of advanced-MAP information elements in mobile networks |
| US8379619B2 (en) * | 2009-11-06 | 2013-02-19 | Intel Corporation | Subcarrier permutation to achieve high frequency diversity of OFDMA systems |
| US9185661B2 (en) * | 2012-06-04 | 2015-11-10 | Nokia Solutions And Networks Oy | Performing power control based on nominal packet size |
-
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- 2009-11-09 US US12/614,586 patent/US8301177B2/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697438A (en) * | 2004-05-10 | 2005-11-16 | 印芬龙科技股份有限公司 | Preamble generator for a multiband OFDM transceiver |
| CN101107792A (en) * | 2005-09-15 | 2008-01-16 | 三洋电机株式会社 | Preamble design for MIMO-OFDM radio apparatus |
| CN101374131A (en) * | 2007-08-20 | 2009-02-25 | 株式会社Ntt都科摩 | Method and apparatus of timing synchronization, leading symbol as well as method and apparatus for generating the same |
| CN101170534A (en) * | 2007-10-31 | 2008-04-30 | 中兴通讯股份有限公司 | A timing rough synchronization capturing method for mobile multimedia broadcast system |
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